typedef axl_bool(* VortexIoAddToFdGroup)(int fds, VortexConnection *connection, axlPointer fd_group)

IO handler definition to perform the "add to" the fd set operation.

Parameters:
fds The socket descriptor to be added.
fd_group The socket descriptor group to be used as destination for the socket.
Returns:
returns axl_true if the socket descriptor was added, otherwise, axl_false is returned.